Heel-support for lasts.



H. A. DAVENPORT. HEEL SUPPORT FOR LASTS. APPLICATION min JAN.12,1915.

Patented Sept. 4, 1917.

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HERMAN A. nAvENPoaT, or enoon'ron,nassacnusnrrs, Assrenon To UNITED sHon 4 MACHINERY CONIPMIY, @E Ieolf JERSEY, A. CORPOaATION 0F NEW Jnnsnv.

nnnnsurroa'r lron Las'rs.

j Patented Sept. do, 1917.

appuqatioa mammary 12, wie. sentirne. 71,555.

To all whom t may concern: j i

Be it known that I, HERMAN A.v DAVEN-l roR'r, a citizen of the United Statearesiding at Brockton, in the county of Plymouth, andi State of Massachusetts, havel` invented, ce1"- tain new and useful Improvements in.l Heel- Supports for Lasts;. and I do hereby cle- Clare the followingto be a full, clear, andi exact description of the invention such, as will enable others skilledin the art toiwhich it appertains to make and use the same.`

j This invention relates toheelsupportsljor lasts and more particularly to protectors on' heel supports to.` prevent the shoe' uppers from being.l pinched? between the last and the support. e j l 7Whenplacing a lasted shoe on thejaek of; a `sole-laying machine, heeling, heel-breast-A ing or other shoe machine, a spindle ony the heel support is forced into. an ironsocket in the heel end oi' the last.l The last is sup,N ported while being operated upon by the baseofthe heel support which4 surrounds the spindle. The last for. the ordinary 4type of high shoe or boo't does not extend-.Ito the top of the upper and the portion` on 4the upper extending above the topi of the lasthas a tendency to close in toward the center of the last when it is stretched overthe last. The shoe upper, and: especially the upper lining, often projects over the last'close. to the socket in a position to be pinched. betvveenthe base of the heel support andy the top of the last, and when pressure is applied to the last, the upper and lining are` damaged.

The primary object of the present invention is to provide a protector :tor the heel support of a jack which will be positively actuated to move a shoe upper ou'tofthe path of the support when the lasted shoe is beingjacked.

In accordance with this object one feature of the invention contemplates the provision in a` heel support for a last, of an upper spreading member on the rsupport and means for positively actuating the spreading member `to move the upper away. from the center of the last when the last being. placed on the Support.

In the preferred form of the invention the spreading member consists of a 'pair ot arms pivoted on the support having shoe upper engaging teeth which normally are held* close to the spindle. A spreader for the arms is mounted in the support and has a cam face in engagement with each fof the arms s@ that, whenjthe last is placed upon the heel support it engages a, stem on the. spreader tel lmove the arms apart. The construction of the cam surfaces onthe` spreader and the surfaces of. the spreading armsfinz contact with thecamofthe spreader may be so designed. UUS, t `give any desired `movement to the. spreading` arms in order` to insure that the upper will `be moved` off from thetop ofthe, last when` the last isforced uponthe spindle. lStill.further.features of. the invention. con- Sist in vceltainfnovel features of construction, combinations and arrangements of parts hereinafter described and,` claimed, the advantages of which will be, obvious to, those skilled in the `art trom the followingde-` Srptieal 1 `The several features ce the` invention are ill,ufstra'te,d inthe, acompanying drawings in which, igure 1 is aview in side elevation ofthe upper. portion of av well-known type of@ soleflaying machine embodying the Pre.- ferred rform oli the invention; Eig. 2 is a` side elevation Of; the mpl'eved heel Support; and Fig. 3l is a rear elevation of the support showing thediferent'positions of the spreading member. l

They heel support upon which the improved protecting device is placed consists cfa last block and a spindle 12 adjustably mounted in a socket in the` block by means of a set screw 111.` The block is proj vided with an opening 16 and set screw 18 bywhich it may be attached to the heel post of a jack.. V d i .To prevent the shoe upper from being pinched between the` base ofthe last block which surrounds the spindle and! the top of the last, the heel support is provided with a lining-protector which consists of a pair of arms pivotally. mounted on the last block and arranged to be spread outwardly from ,the rspindle whilethe; last isA being forced up'on the spindle. r.Ehe spreading arms 2O of the protector are mounted on a pivot pin 22 in the edge of the last block 10. The aXis of the pivot'pin is longitudinal of a supported last, so that the spreading. movement of the arms is in a direction transverse to a supported last. The spreading arms 20 are normally held in a position against the spindle 12 by means of a spring 24 which is coiled about the pin 22 and is in engagement with the top ofe'ach arm 20. To spread the arms when thel lasted shoe -is placed upon the ,5, 32 on each spreading arm. The spreader is l spindle, a spreader 28 is slidably mounted in a boss 26 upon the support 10 below the pivotV pin 22 and has two cam surfaces'30, one surface'being in contact with a cam face provided with a stem which projects below the ends of the arms 20 in a position to engage the upper face of the lastbefore the base of the last block l0 comes into engagement with the last. The movement of the last while it is being forced upon the spindle will force the spreader against the cam faces 32 on the spreading arms and move the spreading arms away from the spindle. spreading arms are being moved away from the spindle, if the shoe upper is in close proximity to the spindle, apair of teeth 34 on each of the spreading armswill posi- 4 tively engage the upper and carry it away from the top of the last so that,'wh`en` the last comes into engagement wi'thfthe base of the last block, thexupper will be away from the top of thelast.

The invention is illustrated as embodied infa sole-laying machine, and only the jack of the sole-laying machine is shown inthe drawings. This jack consists of a heel post 36 and a toe post 38 mounted upon a crosshead 40. The cross -head is adjustably mounted upon a pair of supporting rods 42, only one being shown. The toe post carries a toef pad 44 and is adjustable'along the cross-head 40 relatively to theL heel post. The improved heel support is mounted upon the heel 'post 36 and the spindle 12 is normally forced toward the toe pad by `means of a spring46. 'd l In Fig. '3 the different positions of Ithe spreading members on the heel support are shown. The parts shown in dot and dash lines illustrate one position which the upperV may occupy upon the last before the spreading members have drawn it oli' from the last. In the dot and dash position the upper is drawn across the top of the last in a position such that it would be pinched by the heel support if a protector were not provided. When the last is forced from the position shown in dot and dash lines to the position shown in dotted lines,the spreader 26` ismoved by the last to force the spreading arms fromthe full line position tothe position shown in dotted lines. The spreading arms in going fromthe full line position to the dotted line position positively grip the upper by the teeth 34 and carry it to the position shown in dotted lines.' The design of the cams 30 upon the spreader and the cam faces 32 upon the spreading arms is such that the arms are moved outwardly from the spindle and the teeth' 34 will move inclose proximity to the top of the -lastv and insure that theupper iscarried ofi" from the top' of the last. Experimentshave shown that teeth such as 34 having sharp edges are While the necessary to positiv-ely grip the upper in starting itaway from the top ofthe last,

" and by having the curved Iportion 48 on the spreading arms engage the upper after it has beendrawn from the top ofthe last, a movement of the arms 20 relatively'to the 4uppencan` be made lwithout injuring the this vmachine but maybe applied to any type of device which employsa heel support for a last.

Having thus described my invention, what is `claimed as new,V isb--` v 1. A heel support for` alast having, in combination, 'aflast block, a spindle'on the block, a spreading member pivotally mounted onthe block'and supported close tothe spindle in a *position to move *outwardly acrossv a last--to-spread the-upper of a shoe upon the last, and means? constructed and arranged to engage the last and move relatively"tothe 'spreading member fory positively forcing the spreadingmember away from the spindle Whenthelast isbplaced on the spindle;v 3u 24A heel support for a last having, in combination, a last block, a spindle on the block, a spreading member mounted on the' block and supported close to the' spindle in a positionto move outwardly across a last to spread the upper ofv a shoe upon the last, means `for positively moving `the spreading member away from4 the spindle in close proximity to the top ofthe last, and teeth on Qthe spreading member to engage the upper. Y

3. A heel support for a last having, in combination, a .last block, a spindle vfixed in the block, a spreading arm pivotally 4mounted at eachy side of the blockfand a spreader 115,.. Y

actuating device for moving the arms apart. `4;'A heel supportfor a last having, in combination, aflastblocla spindle fitted in the block, aspreading arm pivotally mounted at each side ofthe block, means for normally holding'the armsclose-y to the spindle, anda spreader for moving the arms apart.

5. A heel support for a last having, in combination, a last block, a spindle fixed in the block, a spreading arm pivotally mounted at each side of the block, Aand a spreader movably mounted in the block to engage the arms and moveV them apart.

6. A heel support for a last having, in combinatin, a last block, a spindle on the block, a spreading arm pivotally mounted at each side of the block, a spreader mounted in the block and having a cam face in en gagement with each arm, and a stem on the spreader for engagement with the last whereby the movement of the last in being forced upon the spindle Will spread the arms apart.

7. A heel support for a last having, in combination, a last block, a spindle on the block, a spreading arm pivotally mounted at each side vof the block, a spring for ncrmally holding the arms in close proximity to the spindle, a spreader having a cam face engaging each arm for moving the arms apart, teeth on the spreading arms for engaging the upper, and a stem on the spreader for engagement with the last whereby the movement of the last in being forced upon the spindlev Will spread the arms apart.

8. A heel support for lasts having, in combination, a last block, a spindle lixed in the block, a spreading arm pivotally mounted at each side of the block, means for normally holding the arms close to the spindle,

and a spreader slidably mounted in the block and projecting in advance of said arms for forcing the arms apartand holding them out of contact With the last when the last is placed on the spindle.

HERMAN A. DAVENPORT.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, .'D. C. 

